Theoretical and Experimental Study of New Photochromic Bis-Spiropyrans with Hydroxyethyl and Carboxyethyl Substituents

Autor: E. L. Mukhanov, I. V. Dorogan, A. V. Chernyshev, S. O. Bezuglyi, I. V. Ozhogin, M. B. Lukyanova, B. S. Lukyanov

Publikováno v: International Journal of Photoenergy, Vol 2013 (2013)

Two new asymmetrical bis-spiropyrans with nonequivalent spiropyran units have been investigated. Hydroxyethyl and carboxyethyl substituents have been used to improve thermal stability of the photoinduced merocyanine forms of the bis-spiropyrans. 2-Hy

Externí odkaz: https://doaj.org/article/b66475ddfe894d50be75de213ecd70e3

Photo- and Thermochromic Spirans. 39. *Study of the Complexation of a New Crown-containing Benzoxazine Spiropyran with Metal Cations

Autor: Maria B. Lukyanova, Boris S. Lukyanov, M. S. Korobov, I. V. Dorogan, S. O. Bezuglyi

Publikováno v: Chemistry of Heterocyclic Compounds. 49:1808-1814

A new benzoxazinone spiropyran containing a crown ether fragment have been synthesized. This compound was studied by both experimental and theoretical methods. In contrast to previously studied analogs, photoinduced coloration is not observed. By irr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::686e5031c9e6a01b263efaa93039a60d
https://doi.org/10.1007/s10593-014-1433-3

The role of charge transfer states in deactivation of the electronic excitation energy of spirooxazines

Autor: Anatoly V. Metelitsa, Olivier Poizat, I. V. Dorogan, Guy Buntinx, Vladimir Lokshin, V. I. Minkin

Publikováno v: Доклады Академии Наук / Doklady Chemistry
Доклады Академии Наук / Doklady Chemistry, 2011, 441, pp.338-342. ⟨10.1134/S0012500811110127⟩
Доклады Академии Наук / Doklady Chemistry, MAIK Nauka/Interperiodica, 2011, 441, pp.338-342. ⟨10.1134/S0012500811110127⟩

338 Photochromic compounds, characterized by reversible photoinduced structural changes, are prom ising candidates for use in different areas of molecular electronics, photonics, and spintronics. Among the photochromic compounds, spirocyclic molecula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daa3a710e6e11096572f959094f8e3cd
https://doi.org/10.1134/s0012500811110127

Synthesis and structure of heterocyclic derivatives of pyran-2-ones based on the dimer of 4,6-di(tert-butyl)-3-hydroxy-1,2-benzoquinone

Autor: Gennadiy V. Shilov, Zyong Ngia Bang, I. V. Dorogan, Vladimir I. Minkin, V. V. Tkachev, V. N. Komissarov, Sergei M. Aldoshin, Yu. A. Sayapin

Publikováno v: Russian Journal of Organic Chemistry. 45:1663-1669

Acid-catalyzed reaction of 6,10a-dihydroxy-3,4a,7,9-tetra(tert-butyl)-1,2,4a,10a-tetrahydrodibenzo-[b,e][1,4]dioxine-1,2-dione with 2-methylquinoline derivatives led to the formation of a previously unknown system 6-[(Z)-2-(quinolin-2-yl)-1-hydroxyet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f09d9f962e77021cfa22d4c4f266009c
https://doi.org/10.1134/s107042800911013x

Thermochromic and Spectral Properties of Perimidinespirocyclohexadienones: A DFT and ab initio Studies

Autor: Vladimir I. Minkin, I. V. Dorogan

Publikováno v: Molecular Crystals and Liquid Crystals. 431:423-427

The ring-opening reactions of perimidinespirocyclohexadienones in the ground and first excited singlet and triplet states were studied at the DFT B3LYP/6-31G**, UB3LYP/6-31G** and CIS/3-21G** levels of theory . It has been found that the thermal isom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e7bc3363c208a1614535fdda907c2fd
https://doi.org/10.1080/15421400590946992